Alert archive / Mississippi / Flash Flood Warnings in 2008

Flash Flood Warning 21, NWS Mobile, AL

September 1, 20085 counties in Mississippi; 5 counties in Alabama; Escambia County, Florida

NWS Mobile, AL issued this flash flood warning at Sep 1, 2008, 3:11 PM CDT for 5 counties in Mississippi; 5 counties in Alabama; Escambia County, Florida. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 1, 2008, 3:11 PM CDT (20:11 UTC)
Expired
Sep 1, 2008, 6:00 PM CDT
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Baldwin County, AL, Choctaw County, AL, Clarke County, AL, Mobile County, AL, Washington County, AL, Escambia County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 28 km from the middle of the area, began a volume at 20:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.2 hours before the alert went out and 132 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2008-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 196 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2008-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 494 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
196 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
494 m²/s²
0-3 km storm-relative helicity
553 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KMOB 012011
FFWMOB
ALC003-023-025-097-129-FLC033-MSC039-041-111-131-153-012300-
/O.NEW.KMOB.FF.W.0021.080901T2011Z-080901T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
311 PM CDT MON SEP 1 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LUCEDALE...
  GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LEAKESVILLE...
  PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF NEW AUGUSTA...
  STONE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WIGGINS...
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF WAYNESBORO...
  BALDWIN COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF BAY MINETTE...
  SOUTHWESTERN CHOCTAW COUNTY IN SOUTHWEST ALABAMA...
  EXTREME SOUTH CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA...
  MOBILE COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITIES OF...DOWNTOWN MOBILE...DAUPHIN ISLAND...
  WASHINGTON COUNTY IN SOUTHWEST ALABAMA...
  THIS INCLUDES THE CITY OF CHATOM...

* UNTIL 600 PM CDT

* AT 249 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THE POSSIBILITY OF FLASH FLOODING FROM BANDS OF HEAVY RAIN     
  MOVING   NORTH NORTHWEST ACROSS THE AREA. THESE BANDS ARE THE OUTER 
  EDGES OF   HURRICANE GUSTAV AS IT MOVES ACROSS SOUTHERN LOUISIANA. 
  THOSE MOST   AT RISK FOR FLASH FLOODING WILL BE WHERE THE HEAVY RAIN 
  BANDS REPEAT   OVER THE SAME AREA...NOT ALL PLACES IN THE WARNING 
  AREA WILL SEE   FLASH FLOOD PRODUCING RAINS. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO   
  CITRONELLE...MCINTOSH...MCHENRY...DEER PARK...TEN MILE...  
  PERKINSTON...AVENT STATION...VINEGAR BEND...MCLAIN...YELLOW 
  PINE...YARBO...BEAUMONT...STATE 
  LINE...BUCKATUNNA...RICHTON...RUNNELSTOWN...WHISTLER AND EUCUTTA

  RADAR AND SURFACE REPORTS INDICATE THAT SOME AREAS HAVE ALREADY 
  RECEIVED 
  BETWEEN 2 AND 3 INCHES TODAY.  ADDITIONAL RAINFALL AMOUNTS OF 3 TO 
  4 INCHES ARE POSSIBLE IN THE WARNED AREA...WITH ADDITIONAL HEAVY 
  RAIN POSSIBLE OVERNIGHT.
 
  MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE 
  INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE 
  USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS 
  POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING 
  FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3092 8933 3092 8914 3143 8914 3144 8893
      3184 8892 3189 8848 3199 8846 3068 8750
      3030 8741 3026 8795 3035 8783 3067 8800
      3026 8806 3024 8820 3025 8822 3027 8813
      3036 8840 3073 8843 3067 8906 3076 8934

$$
1 follow-up statement
000 
WGUS74 KMOB 012146
FFSMOB

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
446 PM CDT MON SEP 1 2008

ALC023-025-012148-
/O.CAN.KMOB.FF.W.0021.000000T0000Z-080901T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARKE AL-CHOCTAW AL-
446 PM CDT MON SEP 1 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN
CHOCTAW AND EXTREME SOUTH CENTRAL CLARKE COUNTIES...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3092 8933 3092 8914 3143 8914 3144 8893
      3183 8892 3168 8830 3068 8750 3030 8741
      3034 8782 3026 8795 3035 8783 3067 8800
      3026 8807 3024 8820 3025 8822 3027 8813
      3036 8840 3073 8843 3067 8903 3076 8934

$$

ALC003-097-129-FLC033-MSC039-041-111-131-153-012300-
/O.CON.KMOB.FF.W.0021.000000T0000Z-080901T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON AL-GEORGE MS-STONE MS-PERRY MS-GREENE MS-WAYNE MS-
BALDWIN AL-MOBILE AL-ESCAMBIA FL-
446 PM CDT MON SEP 1 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR SOUTH
CENTRAL ESCAMBIA...MOBILE...BALDWIN...WAYNE...GREENE...PERRY...
STONE...GEORGE AND SOUTHWESTERN WASHINGTON COUNTIES...

AT 436 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE BANDS OF HEAVY RAIN ASSOCIATED WITH THE EASTERN FRINGES OF 
GUSTAV  MOVING NORTH NORTHWEST ACROSS THE AREA. UNOFFICIAL REPORTS 
OF UP TO 5 INCHES OF RAIN AND ALONG WITH RADAR INDICATIONS OF HEAVY 
RAIN WERE SEEN FROM NORTHEAST WAYNE COUNTY MISSISSIPPI SOUTH 
SOUTHEAST ACROSS WASHINGTON...NORTHERN MOBILE COUNTY AND INTO SOUTH 
CENTRAL BALDWIN COUNTY. 

AN ADDITIONAL 1 TO 2 INCHES POSSIBLE IN SOME AREAS OVER THE FLASH 
FLOOD WARNING AREA THROUGH THE AFTERNOON.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO YELLOW 
PINE...TURNERVILLE...STOCKTON...SATSUMA...SARALAND...SALCO...MOUNT 
VERNON...MILLRY...GULFCREST...GEORGETOWN...FRUITDALE...CHUNCHULA... 
BAY MINETTE...WAYNESBORO...RUNNELSTOWN...MCLAIN...
MAHNED...LUCEDALE...BUCKATUNNA...AND BEAUMONT.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TUESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3092 8933 3092 8914 3143 8914 3144 8893
      3183 8892 3168 8830 3068 8750 3030 8741
      3034 8782 3026 8795 3035 8783 3067 8800
      3026 8807 3024 8820 3025 8822 3027 8813
      3036 8840 3073 8843 3067 8903 3076 8934

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 1, 12:46 PM CDTTornado WarningMOBGreene, Wayne44 min
Sep 1, 12:51 PM CDTTornado WarningMOBStone39 min
Sep 1, 1:57 PM CDTTornado WarningMOBWayne33 min
Sep 1, 2:20 PM CDTTornado WarningMOBWayne25 min
Sep 1, 2:44 PM CDTTornado WarningMOBWayne34 min
Sep 1, 4:20 PM CDTTornado WarningMOBGreene, Wayne40 min
Sep 1, 6:02 PM CDTFlash Flood WarningMOBGeorge, Greene, Perry, Stone, Wayne3 hr
Sep 1, 2:43 AM CDTSpecial Marine WarningMOB47 min
Sep 1, 2:51 AM CDTSpecial Marine WarningMOB39 min
Sep 1, 3:00 AM CDTTornado WarningMOBBaldwin, Mobile60 min
Sep 1, 3:28 AM CDTSpecial Marine WarningMOB62 min
Sep 1, 3:31 AM CDTTornado WarningMOBBaldwin44 min
Sep 1, 4:21 AM CDTSpecial Marine WarningMOB54 min
Sep 1, 4:27 AM CDTSpecial Marine WarningMOB48 min
Sep 1, 4:35 AM CDTTornado WarningMOBBaldwin55 min
Sep 1, 4:48 AM CDTSpecial Marine WarningMOB42 min
Sep 1, 5:23 AM CDTSpecial Marine WarningMOB97 min
Sep 1, 5:25 AM CDTTornado WarningMOBBaldwin50 min
Sep 1, 5:31 AM CDTTornado WarningMOBBaldwin59 min
Sep 1, 5:46 AM CDTTornado WarningMOBBaldwin, Mobile59 min
Sep 1, 6:21 AM CDTTornado WarningMOBBaldwin, Mobile, Washington39 min
Sep 1, 6:28 AM CDTTornado WarningMOBBaldwin, Mobile62 min
Sep 1, 6:31 AM CDTTornado WarningMOBBaldwin44 min
Sep 1, 6:49 AM CDTTornado WarningMOBBaldwin, Mobile41 min
Sep 1, 7:01 AM CDTTornado WarningMOBBaldwin, Mobile44 min
Sep 1, 7:07 AM CDTTornado WarningMOBBaldwin, Mobile, Washington40 min
Sep 1, 7:40 AM CDTTornado WarningMOBBaldwin50 min
Sep 1, 8:12 AM CDTTornado WarningMOBBaldwin63 min
Sep 1, 8:14 AM CDTTornado WarningMOBBaldwin61 min
Sep 1, 8:24 AM CDTTornado WarningMOBBaldwin51 min
Sep 1, 8:32 AM CDTTornado WarningMOBBaldwin43 min
Sep 1, 8:38 AM CDTTornado WarningMOBBaldwin52 min
Sep 1, 8:39 AM CDTTornado WarningMOBBaldwin, Mobile38 min
Sep 1, 8:49 AM CDTTornado WarningMOBBaldwin27 min
Sep 1, 11:35 AM CDTCoastal Flood WarningMOB22 hr
Sep 1, 11:35 AM CDTTornado WarningMOBBaldwin, Mobile9 min
Sep 1, 11:45 AM CDTRiver Flood WarningMOBMobile34 hr
Sep 1, 12:21 PM CDTTornado WarningMOBBaldwin24 min
Sep 1, 12:25 PM CDTRiver Flood WarningMOBBaldwin28 hr
Sep 1, 12:27 PM CDTTornado WarningMOBBaldwin33 min
Sep 1, 12:50 PM CDTTornado WarningMOBBaldwin40 min
Sep 1, 12:52 PM CDTTornado WarningMOBBaldwin, Mobile38 min
Sep 1, 12:57 PM CDTTornado WarningMOBCovington33 min
Sep 1, 1:19 PM CDTTornado WarningMOBBaldwin, Mobile28 min
Sep 1, 1:26 PM CDTTornado WarningMOBWashington49 min
Sep 1, 1:39 PM CDTTornado WarningMOBBaldwin21 min
Sep 1, 1:48 PM CDTSpecial Marine WarningMOB42 min
Sep 1, 2:05 PM CDTTornado WarningMOBBaldwin, Mobile40 min
Sep 1, 2:48 PM CDTTornado WarningMOBBaldwin42 min
Sep 1, 3:20 PM CDTSpecial Marine WarningMOB25 min
Sep 1, 3:43 PM CDTTornado WarningMOBBaldwin22 min
Sep 1, 4:38 PM CDTTornado WarningMOBBaldwin, Mobile52 min
Sep 1, 4:40 AM CDTTornado WarningMOBEscambia, Santa Rosa50 min
Sep 1, 5:57 AM CDTTornado WarningMOBEscambia, Santa Rosa48 min
Sep 1, 6:37 AM CDTTornado WarningMOBEscambia, Santa Rosa53 min
Sep 1, 7:12 AM CDTTornado WarningMOBEscambia, Okaloosa, Santa Rosa38 min
Sep 1, 7:57 AM CDTTornado WarningMOBEscambia, Santa Rosa48 min
Sep 1, 8:07 AM CDTTornado WarningMOBEscambia, Santa Rosa38 min
Sep 1, 8:18 AM CDTTornado WarningMOBOkaloosa, Santa Rosa24 min
Sep 1, 9:59 AM CDTTornado WarningMOBOkaloosa25 min
Sep 1, 10:28 AM CDTTornado WarningMOBOkaloosa29 min
Sep 1, 10:49 AM CDTTornado WarningMOBOkaloosa41 min
Sep 1, 12:05 PM CDTTornado WarningMOBOkaloosa40 min

Nearby

Flash Flood Warnings in Mississippi, 2008Flash Flood Warnings in Alabama, 2008Flash Flood Warnings in Florida, 2008Every flash flood warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.